Winding device



April 1956 c. B. KINGSBURY 2,743,061

WINDING DEVICE Filed Nov. 26, 1952 5 Sheets-Sheet 1 Q m N Q 1 \N o i I N(.5 i; LI-

5 a? w m N S N g J Q xx 4 \3 Q INVENTOR W CHADWIGK B. KINGSBURY BY M J a1% g ATTORNEY April 1956 c. B. KINGSBURY 2,743,061

WINDING DEVICE Filed Nov. 26. 1952 5 Sheets-Sheet 2 Fla? GHADWIOK B.KINGSBURY W1 6 ATTORNEY INVENTOR April 24, 1956 c. B. KINGSBURY WINDINGDEVICE 5 Sheets-Sheet 3 Filed Nov. 26, 1952 NVENTOR M I A; ATTORNEY Aril 24, 1956 c. B. KINGSBURY 2,743,061

WINDING DEVICE Filed Nov. 26, 1952 .5 Sheets-Sheet 4 /J 55 F IG. 5.

WW V F l G 8 INVENTOR GHADWIGK B. KINGSBURY ATTORNEY April 24, 1956 c.B. KINGSBURY WINDING DEVICE 5 Sheets-Sheet 5 Filed NOV. 26, 1952 FIG. 9.

INVENTOR GHADWICK B. KINGSBURY BY fl-yx ffl Z ATTORNEY United StatesPatent WINDING DEVICE Chadwick B. Kingsbury, Elizabethton, Tenn.,assignor to North American Rayon Corporation, New York, N. Y., acorporation of Delaware Application November 26, 1952, Serial No.322,682

6 Claims. (Cl. 242-18) This invention relates to Winding devices ingeneral. More particularly, this invention relates to an improvedwinding device adapted to wind substantially dynamically balanced yarnpackages.

An object of this invention is to provide an improved winding deviceadapted to wind substantially dynamically balanced yarn packages atrelatively high speeds.

Another object of this invention is to provide an improved windingdevice adapted to wind substantially dynamically balanced yarn packageshaving concentric layers of yarn.

Another object of this invention is to provide an improved windingdevice for winding yarn packages, said device being provided with anarrangement for preventing the yarn packages from engaging the drivingmechanism in case the yarn breaks or after the package is wound.

Still another object of this invention is to provide an improved windingdevice for winding yarn packages, said device being provided with aweight mechanism that tends to counterbalance the weight of the yarnpackage so that the pressure exerted by the yarn package on the drivingmechanism is substantially uniform during the winding of the yarnpackage.

A further object of this invention is to provide an improved windingdevice for winding yarn packages, said device being constructed with aleverage that is actuated during the winding of the yarn package so asto control the pressure between the yarn package and the drivingmechanism during the winding process.

Still another object of this invention is to provide an improved windingdevice for winding yarn packages, said device having a weight thatcontrols the pressure of the yarn package on the driving mechanism insuch a way that the yarn package rides smoothly and evenly on the driveroll.

A further objective of this invention is to provide an improved windingdevice for winding yarn packages, the device being provided with aweight that is connected to the yarn package supporting frame byvariable leverage that controls the effective weight of said weightmember transmitted to said supporting frame so that the pressure of saidyarn package on said drive roll is substantially uniform during thewinding of said package. v

Another object of this invention is to provide an improved andsimplified yarn winding device eliminating the usual internal arbors,axles and the like normally used to support and guide the bobbin duringits build up. Still another object of this invention is to provide animproved winding device for Winding yarn packages, said device beingprovided with an arrangement of cams,

levers and counterweights to function as a friction and inertia snubbermaintaining contact free of vibration between the bobbin and drive rollengaging the bobbin so as to wind a bobbin free of longitudinal flatareas.

A further object of this invention is to provide an improved windingdevice for winding yarn packages, said device being provided with anarrangement 'of cams, levers and counterweights to function as afriction and inertia snubber for maintaining a steady and uninterruptedpressure between the bobbin and drive roll engaging the bobbin, whichsteady pressure may, however, be held uniform or increased or decreasedas the yarn bobbin is built up.

Other and further objects of this invention will be apparent to thoseskilled in the art to which it relates from the following specification,claims and drawings.

In accordance with this invention there is provided a winding device forwinding substantially dynamically balanced yarn packages efliciently andexpeditiously. The yarn packages are wound upon a suitable tubularsupport or bobbin With or without heads which may be made of cardboard,Bakelite, metal or similar material and an arrangement is provided forsupporting this bobbin in contact with a drive roll for the purpose ofrotating the bobbin. As layers of yarn are wound upon the bobbin thisdrive roll engages the outermost layer of the yarn. Accordingly, theyarn package gradually increases in weight and diameter as more yarn iswound thereon so that normally the pressure of the yarn package on thedrive roll would increase. However, in accordance with this inventionthere is provided a pivotally supported weight that is connected to theyarn package supporting frame by means of a variable leverage. Thisvariable leverage functions to increase the elfective pressure of theweight member exerted against the yarn package supporting frame so thatthe weight of the yarn wound upon the yarn package is counteracted andthe pressure of the yarn package on the drive roll is underpredetermined control during the winding of the yarn package.

This mechanism also includes a toggle type latch arrangement whichfunctions to hold the package out of engagement with the drive roll atthe discretion of the operator. This permits the operator to latch thebobbin out of engagement with the drive roll in case of a yarn break,thus, preventing damage to the yarn body from continued contact with thedrive roll after a break has occurred.

The friction of the variable leverage also may be varied or adjusted soas to cause the yarn package to ride on the drive roll in a smooth anduniform manner. This feature also improves the quality of the yarnpackage since it eliminates bumpy and uncontrolled contact of the yarnpackage with the drive roll, and thereby insures the uniform circularcontour of the package.

Further details of this invention will be apparent to those skilled inthe art to which it relates from the follow ing detailed description ofan embodiment thereof and also from the drawings in which, briefly:

Fig. 1 is a perspective view of a winding device made in accordance withthis invention and adapted to wind two yarn packages;

Fig. 2 is a plan view of the embodiment of this invention shown in Fig.1;

Fig. 3 is a sectional view of one of the yarn package supportingbearings and this section view is taken along the line 3--3 of Fig. 2;

Fig. 4 is a side view of the embodiment shown in Fig. 1;

Fig. 5 is a view taken along the line 55 of Fig. 2;

Fig. 6 is a view similar to Fig. 5 with the bearing sleeve shiftedaxially along the shaft;

Fig. 7 is a view similar to Fig. 6 with the slotted bearing memberlifted almost away from the shaft;

Fig. 8 is a view taken along the line 8--8 of Fig. 7; Fig. 9 is a detailview of the pivoted weight and variable leverage mechanism employed inthis invention;

Fig. 10 is a side view of the pivoted weight mechanism and is takenalong the line 6-6 of Fig. 9 to show this mechanism in latched position;7

Fig. 11 is another side view of the pivoted weight mechanism shown inFig. to show the positions of the levers in this mechanism when thebobbin is empty;

Fig. 12 is a detail view of the latch mechanism taken along the line12-12 of Fig. 9; and

Fig. 13 is an additional view of the pivoted weight mechanism showingthe positions of the levers in this mechanism when the bobbin is full.

Referring to Fig. l of the drawing there is shown an embodiment of thisinvention in perspective, and in this view one of the yarn supportingbobbins 18 is shown wound with yarn 11, the circumferential surface ofwhich engages the circumference of the drive roll 12 which rotates theyarn 11 on bobbin 10 as yarn is fed thereto by a suitable traversemechanism 12a. The bobbin 10 may be of material such as cardboard,Bakelite, metal or the like and is supported on each of the arms 13 and14, as shown in Fig. 2, by a bearing structure such as is shown in Fig.3. The arms 13 and 14 are connected together by a suitable cross memberto form a U-shaped frame 15 that is pivotly supported on the shaft 16 bybearing members 17 and 18 that are attached to the frame 15 so that thisframe and the yarn package supported thereby may be moved up and down ashort distance by the lever 19 as will be described hereinafter.Furthermore, because of this pivoted support, the yarn package ispermitted to ride against the surface of the drive roll 12 which iscarried by the shaft 20 that is driven by a motor through a suitabledriving mechanism.

Suitable ball bearing arrangements such as shown in Fig. 3 are carriedby each of the arms 13 and 14 although only one of these bearingarrangements carried by the arm 14 is shown movable with respect to theyarn package both of the bearing arrangements may be movable if desired.This movement is accomplished by the arm 19. The bearing arrangement isprovided with a flanged wheel 21 having a bevelled edge for engaging theend of the tube 10. This wheel has a hole formed therein for receivingand tightly holding the outer race 22 which engages the ball bearings23. The inner race 24 which also engages the ball bearings 23 issupported by the shaft 25 that is axially movable in a hole formed inthe arm 14. A pin 26 carried by the shaft 25 is adapted to engage thearm 14 in the slots 27 which extend in a direction parallel to thelength of the shaft 25. The pin 26 is also adapted to engage the arm 19in the slots 28 which extend in a direction substantially at rightangles to the length of the shaft 25. The end of the arm 19 that ispivoted by the pin 29 to the arm 14 is of U-shaped configuration so thatthe ends 19a and 19b of the U-shaped portion engage opposite sides ofthe end of the arm 14 to which these arms are pivoted by the pin 29.This bearing support construction enables the operator to move therotatable wheel 21 away from the end of the bobbin 10 by manipulatingthe arm 19 so that this bobbin may be either removed or inserted.

A spring 30 having a substantially U-shaped configuration is supportedon the arms 14 and 19 as shown in Fig. 4 for the purpose of urging theflanged wheel 21 into engagement with the end of the bobbin 10. Thisspring 30 is provided with a central portion 31 that extends across thearm 14, and two substantially parallel portions 32 and 33 that areconnected to the portions 31 and extend away therefrom past the ends ofthe pin 29. and terminating in short hook portions 34 and 35 that engageinner surfaces of the U-shaped portions of the arm 19. Thus, the pin 29serves to hold the spring 30 in place and also cooperates with thisspring to apply pressure against the arm 19 which forces the wheel 21against the end of the bobbin 10.

The arm 13 is provided with a similar bearing structure for supporting aflanged wheel 21a similar to the flanged wheel 21 shown in Fig. 3, thatis adapted to engage the other end of the bobbin 10. This wheel issupported by a ball bearing and shaft arrangement similar to that shownin Fig. 3, except that the shaft is fixedly attached to the arm 13although a movable arrangement may be employed in this case also ifdesired.

Another frame 36 which is the same as the frame 15 and is provided withidentical corresponding parts is also pivotly supported on the shaft 16.For this purpose the frame 36 is provided with bearing members 37 and 38that are positioned adjacent to the bearing members 17 and 18respectively of the frame 15. The bearing portions 17 and 37 engage thesleeve 39 that is supported by the shaft 16 which is held in place onthe shaft by a suitable set-screw 40 that is threaded into the flangeportion 41 of this sleeve. The bearing members 18 and 38 engage thesleeve 42 which is similar to the sleeve 39 and is held in place on theshaft 16 by the set-screw 43 that is threaded into the flange 44 of thissleeve as shown in Figs. 5, 6 and 7. The flanges 41 and 44 are of largerdiameter than the diameter of the body portion of these sleeves andthese flanges are disposed so that flange 41 engages one side of thebearing 17, the other side of this bearing member abutting the outerside of the bearing member 37 and the flange 44 abutting the outer sideof the bearing member 38, the other side of this bearing abutting theouter side of the bearing 18. With this arrangement, the bearing members17 and 37 are kept from shifting on the sleeve 39 and the bearingmembers 18 and 38 are kept from shifting on the sleeve 42.

The bearing members 17, 18, 37 and 38 are each provided with slots suchas the slot 45 that is cut into the bearing member 38 as shown in Figs.4, 5, 6 and 7. The width of this slot is slightly larger than thediameter of the shaft 16 but substantially less than the outside diameter of the sleeve 42 as shown in Fig. 8 so that the bearing membercannot be removed from the sleeve. However, if the sleeve 42 is slippedaside on shaft 16 after the set-screw 43 is loosened as shown in Figs. 6and 7, these bearing members 18 and 38 may be removed from the shaft 16.This is illustrated in Figs. 7 and 8 where one of the members 18 isshown being so removed. The frames 15 and 36 may, therefore, be removedfrom the shaft 16 by loosening the set-screw 40 of the sleeve 39 and theset-screw 43 of the sleeve 42 and sliding these sleeves on the shaft 16so as to unlock the bearing members 17-37 and 18-38 so that thesebearing members may be slipped off of the shaft 16 through therespective slots thereof. The sleeves 39 and 42 serve to lock thesebearing members on the shaft 16 and also serve to hold these bearingmembers in certain predetermined position on this shaft. The flanges 41and 44 cooperate with these bearing members to produce this latterresult.

Each of the frames 15 and 36 is provided with a lever arm such as arm 46that is made integral with the frame 36 as shown in Figs. 1 and 4. Thesearms cooperate with pivoted weight mechanisms that are supported by theshaft 47 and function to maintain a controlled steady pressure on thedrive rolls 12 of the yarn packages being wound on the bobbins 10. Theseweight mechanisms each include a weight member 48 attached to a sleeve49 that is rotatably positioned on the shaft 47. Each of these sleevesis provided with an arm 50 having a slot 51 cut therein as shown inFigs. 10 and 11. Roller 52 that is supported on the arm 46 by the pin 53engages the arm 50 in the slot 51. However, where additional friction isdesired to prevent the yarn package 11 from jumping up and down on thedrive roll 12 when certain types of yarn are being wound, for example,the roller may be omitted and the pin 53 may itself be made large enoughto engage the sides of the slot 51. Additional friction may be obtainedbetween thearms 46 and 50 by the use of a spring asillustrated in Fig. 9as will be described hereinafter.

The weight 48 projects from the bearing member 49 at an angle which issubstantially a right angle with respect to the arm 50 and when thewinding of the yarn package on the bobbin 10 is initiated this weight 48is in its uppermost position and the-roller 52 is disposed at the farend of the slot 51 as shown in Figs. 1 and 11. At this time, the weight48 exerts only a slight lifting action on the mechanism tending to liftthe bobbin away from the drive roll 12. However, as the yarn is wound onthe bobbin 10 the bobbin diameter increases and the roller 52 slides inthe slot 51 toward the shaft 47 and gradually reduces the effectivelength of the arm 50 so that the effect of the weight 48 is increased.As a result a predetermined pressure of the yarn package upon the driveroll 12 is maintained. This predetermined pressure, may be made toincrease, decrease or remain constant as the bobbin builds up. v

When a gradually decreasing pressure between bobbin 10 and the driveroll 12 is desired, the counterweight 48 may be adjusted to increase itseffective pressure on arm 46, thus over compensating for the bobbinweight increase as it builds up. When a gradually increasing pressurebetween bobbin 10 and the drive roll 12 is desired, the counterweight 48may be adjusted to decrease its effective pressure on arm 46, thus undercompensating for the bobbin weight increase as it builds up. Therefore,by a combination of the contour of slot 51, counterweight position andsize any combination of pressure increase or decrease between bobbin 10and roll 12 may be effected throughout the build up of a bobbin. Whilethe contour of slot 51 is shown straight it may, when desired, be madeany contour necessary to effect the pressure relationship desiredbetween bobbin 10 and roll 12.

The arm 59 is provided with a laterally extending portion 54 whichsupports a spring toggled latch 55 that is on the pin 56. This latch 55is provided with a notch 57 that engages the pin 58 when the fully woundyarn package 11 is lifted olf of the drive roll 12 by the lever 19. Atthis time, the pin 58 engages the notch 57 and rotates the latch 55 onits pivot 56 against the tension of the spring 59 from the positionshown in dotted outline in Fig. 12 to the position shown in solid lines.The spring 59 thus'acts as a part of a toggle mechanism and for thispurpose one end of this spring is anchored to the arm 50 by the pin 60and the other end is enchored to the latch 55 by the pin 61. This latchmechanism functions to hold the fully wound yarn package 11 elevated outof contact with the drive roll 12.

Pressure may be applied between the arms 46 and 50 by means of a coilspring 62 positioned on the shaft 47 between the bearing member 49 andthe adjustable collar 63 that is held on the shaft 47 by the set-screw64. Where additional friction is desired between the arms 46 and 50, thespring 62 may be compressed against the bearing member 49 by adjustingthe collar 63 closer to this bearing member 49 or by providing a springhaving greater tension.

This friction between arms 46 and 50 acts as a snubber to dampen anyvibration which may be generated by bobbin 10 rolling on drive roll 12.Various materials may be selected to act as friction plates between arms46 and 50 depending on the results desired.

in actual operation when an empty yarn bobbin is placed between flangedwheels 21 and 21a and brought into contact with roll 12, arms 46 and 50are in the position shown in Fig. 11. During the winding process, thethread 12b passes to the guide 12a of the traverse over the stationaryrod 120 as shown in Fig. 4 and the guide 12a functions to distribute thethread over the bobbin. In order to accomplish this function the threadguide is attached to the traverse bar 12a which is moved back and forthso that the thread 12b is distributed on the bobbin 10 during thewinding operation. As the yarn body builds up the roller 52 proceedsfrom the extreme outer position in slot 51 to the extreme inner positionas shown in Fig. 13. When the roller 52 is in the outer position (Fig.11) the counterweight 48 has little or no elfect on the pressure betweenthe empty bobbin 10 and the drive roll 12. When the bobbin 10 is fulland roller 52 is in position shown in Fig. 13, the counterweight 48 V 6exerts the maximum pressure on lever arm 46 through the agency of lever50 and roller 52. This friction developed between lever arms 46 and 50by the action of spring 62 removes all back lash in the mechanism and,at the same time, dampens out vibration between the yarn body and thedrive roll. This prevents the formation of lateral flat areas on theyarn body which, if allowed .to form, cause violent vibration betweenthe yarn body and the drive roll and, in turn, produce an unbalancedyarn body unsuitable for subsequent rotation at high speeds. This is animportant feature of this invention where heavy packages of yarn areproduced for subsequent high speed rotation.

The variable linkage comprising the arms 46 and 50 that are slidablyconnected together by means of the roller 52 that is pivoted to the arm56 by the pin 53, thus functions to control the pressure of the roll 12against the bobbin 10 so that this pressure is under control throughoutthe winding cycle during which the thread or yarn is wound on the bobbin10. As pointed out hereinbefore, the friction between the arm 46 and thearm 50 may be increased or decreased as desired by increasing ordecreasing the tension of the spring 62 illustrated in Fig. 9.Furthermore, the spring 62 may also be employed to take the place of theweight 48 and, in this case, one end of the spring may be fixed to thesleeve 64 or to the bar 47 and the other end may be fixed to the sleeve49 so that this latter sleeve 49 may be rotated on the bar or shaft 47against the tension of the spring 62.

Other variations may be made in this invention without departing fromthe spirit and scope thereof and, therefore, I do not desire to limitthis invention to the exact details described and illustrated exceptinsofar as those details are set forth in the claims.

What I claim is as follows:

,1. In an apparatus for winding of thread or yarn to form awell-balanced package that may be subsequently rotated at relativelyhigh speeds without damaging vibration, the combination of a freelyrotatable take-up bobbin, thread or' yarn traversing means for feedingthe thread or yarn to and fro across said bobbin, a roll for drivingsaid bobbin, pivoted means for supporting said bobbin so that saidbobbin and the thread or yarn wound thereon ride in contact with saidroll, a pivoted weight and a variable linkage connected between saidweight and said pivoted means for controlling the pressure of said rollagainst said bobbin and the thread or yarn wound thereon so that thispressure is under control throughout the winding cycle during which thethread or yarn is wound on said bobbin, and a toggle latch carried bysaid variable linkage for holding said bobbin out of contact with saidroll when it is desired to interrupt the rotation of said bobbin.

2. In an apparatus for winding of thread or yarn to form a well-balancedpackage that may be subsequently rotated at relatively high speedswithout damaging vibration, the combination of a freely rotatabletake-up bobbin, thread or yarn traversing means for feeding the threador yarn to and fro across said bobbin, a roll for driving said bobbin,pivoted means for supporting said bobbin so that said bobbin and thethread or yarn wound thereon ride in contact with said roll, a pivotedweight and a variable linkage connected between said weight and saidpivoted means for controlling the pressure of said roll against saidbobbin and the thread or yarn wound thereon so that this pressure isunder control throughout the winding cycle during which the thread oryarn is wound on said bobbin, said variable linkage comprising a pair oflevers, friction means for slidably connecting said levers together andresilient means for controlling said friction means.

3. In an apparatus for winding of thread or yarn to form a well-balancedpackage that may be subsequently rotated at relatively high speedswithout damaging vibrabobbin so that said bobbin and the thread or yarnwound thereon ride in contact with said roll, a pivoted weight and avariable linkage connected between said weight and said pivoted meansfor controlling the pressure of said roll against said bobbin and thethread or yarn wound thereon so that this pressure is under controlthroughout the winding cycle during which the thread or yarn is wound onsaid bobbin, frictional means for connecting the elements of saidvariable linkage together and a spring for controlling the frictiondeveloped in said frictional means.

4. In an apparatus for winding of thread or yarn to form a well-balancedpackage that may be subsequently rotated at relatively high speedswithout damaging vibration, the combination of a freely rotatabletake-up bobbin, thread or yarn traversing means for feeding the threador yarn to and fro across said bobbin, a roll for driving said bobbin, afixed bar, a U-shaped member, said U-shaped member having a pair of armsfor supporting said bobbin so that said bobbin and thread or yarn woundthereon ride in contact with said roll, a pair of slotted bearingmembers attached to said U-shaped member and supported on said bar inspaced relation, sleeves positioned between said slotted bearing membersand said bar, said sleeves being adapted to lock said bearing members onsaid bar to permit rotation but prevent undesired removal thereof, apivoted weight and a variable linkage connected between said weight andsaid U-shaped member for controlling the pressure of said roll againstsaid bobbin and the thread or yarn wound thereon so that this pressureis under control throughout the winding cycle during which the thread oryarn is wound on said bobbin.

5. In an apparatus for winding of thread or yarn to form a well-balancedpackage that may be subsequently rotated at relatively high speedswithout damaging vibra tion, the combination of a freely rotatabletake-up bobbin, thread or yarn traversing means for feeding the threador yarn to and fro across said bobbin, a roll for driving said bobbin, afixed bar, a U-shaped member, said U-shaped member having a pair of armsfor supporting said bobbin so that said bobbin and thread or yarn woundthereon ride in contact with said roll, a pair of slotted bearingmembers attached to said U-shaped member and supported on said bar inspaced relation, sleeves positioned between said slotted bearing membersand said bar, said sleeves being adapted to lock said bearing members onsaid bar to permit rotation but prevent undesired removal thereof, apivoted weight, a first arm fixedly attached to one of said slottedbearing members, a second arm connected to said pivoted weight, andmeans for variably connecting said first arm and said second arm forcontrolling the pressure of said roll against said bobbin and the threador yarn wound thereon so that this pressure is under control throughoutthe winding cycle during which the thread or yarn is wound on saidbobbin.

6. In an apparatus for winding of thread or yarn to form a well-balancedpackage that may be subsequently rotated at relatively high speedswithout damaging vibration, the combination of a freely rotatabletake-up bobbin, thread or yarn traversing means for feeding the threador yarn to and fro across said bobbin, a roll for driving said bobbin, afixed bar, a U-shaped member, said U-shaped member having a pair of armsfor supporting said bobbin so that said bobbin and thread or yarn woundthereon ride in contact with said roll, a pair of slotted bearingmembers attached to spaced parts of said U-shaped member, the slots insaid bearing members being wide enough so that said bearing members maybe placed on said bar through the slots thereof, sleeves positionedbetween said slotted bearing members and said bar, each of said sleeveshaving an outer diameter greater than the width of the slot of thecorresponding bearing member to lock said bearing members on said bar topermit rotation of said bearing members but prevent undesired removalthereof, a pivoted weight and a variable linkage connected between saidWeight and said U-shapecl member for controlling the pressure of saidroll against said bobbin and the thread or yarn wound thereon so thatthis pressure is under control throughout the winding cycle during whichthe thread or yarn is wound on said bobbin.

References Cited in the file of this patent UNITED STATES PATENTS1,458,495 Morrison June 12, 1923 2,150,951 Toole Mar. 21, 1939 2,197,747Naumann Apr. 16, 1940 2,231,837 Elvin Feb. 11, 1941 2,605,974 Keith Aug.5, 1952 FOREIGN PATENTS 43 Great Britain Jan. 6, 1868

